CVE-2022-37434

CriticalCVSS 9.8/10Last modified Oct 14, 2026

Description

zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference).

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787 CWE-120

Affected software

No affected versions have been published.

Timeline

Published: Aug 5, 2022
Last modified: Oct 14, 2026
NVD status: Modified

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